Extension spring-roller.



WITNESSES:

s. E. MALLERY. EXTENSION SPRING ROLLER.

APPLICATION YILBQMAY 29, 1911,

Patented Oct. 28, 1913.

ATTORNEYS parts, the portion of tion 2 ,b

UNITED STATES PATEN STANTON E. MALLERY, 0F SYRACUSE, NEW YORK, ASSIGNORT0 OLIVER M, EDWARDS, 0F SYRACUSE, NEW YORK.

EXTENSIQN SPRING-ROLLER.

Specification of Letters Patent. Application filed May 29, 1911.

Patented com. 28, 1913. Serial No. 630,041.

To all whom it may concern:

Be it known that I, STANTON E. Manner, of Syracuse, in the county ofOnondaga and State of New York, have invented a certain new and usefulExtension Spring-Roller, of which the following is aspecification,

This invention has for its object the production of an extension springroller for raising curtains, windows, etc., which is particularly simplein construction, economical in manufacture, and highly efiicient anddurable in use; and the invention consists in the combinations andconstructions hereinafter set forth and claimed.

In describing this invention reference is had to the accompanyingdrawing in which like characters designate corresponding parts in allthe views.

Figure 1 is a longitudinal sectional view.

of my spring roller. Fig. 2 is a cross sec tional View thereof, on lineA A, Fig. 1. Figs. 3 and 4 are end views of the telescoping portions ofthe roller.

This extension spring roller comprises, generally,sections havingtelescoping tubular portions, the inner tubular portio being expansibleand contractile and fo med of resilient material in order to clamp thesame within the outer tubular portion.

1 and 2 are thesection's of the roller, the section 1 having tubularportion 3 in which telescopes the tubular portion or extension member 4secured to the section 2. The major parts of the sections 1 and 2 arepreferably of equal diameter and the portion 4 of the section 2 alsotelescopes within the major part of the section 2 and is fixed thereinin any suitable manner.

The sections 1, 2 are preferably tubular tion 3 of the section 1 isintegral with the remaining portion of suchsection 1.

The major parts of the sections 1 and 2 of the roller are provided witha peripheral lengthwise depression 5 which forms an external channel andan inwardly extending rib extending the full length of said, major thechannel in the secemg alinedwith the portion of the channel in thesection 1. The channel formed by the depression 5 is for the purpose ofreceiving the edgesof thecurta-in, or the means of attachment of theroller to a window, as skilled in the art.

The inner tubular portion 4 of the section 2 is split longitudinally inorder to render the bent to conform to the internal rib formed by thedepression 5.

In the illustrated embodiment of my in-,

vention the lengthwise flanges or margins 6, 7 on OTFPOSilJG sid he lineof division of the tubular portion 4, are bent to conform to the rib'and one of such margins, as the margin 6, is designed to overlap themargin 7 when the tubular portion 4 is fittedwithin the portion 3 of thesection 1. After the portion 4 has been inserted in the portion 3 of thesection 1, the section 2 is moved endwise until the roller is of properlength and the telescoping portions arethen permanently secured togetherby forming interfitting indentations in the telescoping portions asillustrated at 8. The sections 1, 2 are also provided with suitableaxles or trunnions 9 and 10, the axle 9 being designed to beheldstationary in the normal use of the roller, and being connected toone end of a spring 11 extending axially of the section 1, such springbeing connected at its other end to an anchor 12 located within thesection 1. The axle 10 is designed to rotate with the section .2 as willbe understood by those skilled in the art. I

This extension spring roller is particularly advantageous in that it canbe quickly adjusted to the desired length and parts thereof permanentlysecured together. 'What I claim is:

An extension spring roller comprising,

two tubular sections having corresponding lengthwise depressions formingperipheral channels, and internal beads, or ribs, and an extensionmember comprising a split barrel having contiguous longitudinal edgesprovided with inwardly extending flanges designed to overlap each other,and curved to substantially conform to the cross-sec tional shape ofsaid beads, or ribs, said bar- Will be understood by those sameexpansible and contractile and is l rel being carried by one of saidsections and 1 testing Witnesses, at Syracuse, in the county telescoplngWithin the other of said sec of Onondaga, in the State of New York, 10tions and being held in place therein by this 22nd day of May, 1911.

complemental indentations and depressions substantially as and for thepurpose de STANTON MALLERY' scribed. Witnesses In testimony whereof, Ihave hereunto G. G. NORRIS,

signed my name in the presence of two at- CHAS. H. YOUNG

